Question
PSLE
Julie has a number of files in three colours: purple, green and blue. 311 of the files are purple. The number of purple files is four times the number of green files. What fraction of the files is blue?
2 m

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PSLE
Julie has a number of files in three colours: purple, green and blue. 311 of the files are purple. The number of purple files is four times the number of green files. What fraction of the files is blue?